Around 10 people were injured in clashes between rival migrant groups in the northern French port city of Calais, until recently a magnet for people trying to reach Britain, local authorities said on Tuesday.
A fight broke out on Monday night in a wooded industrial area near what had been the site of a sprawling shanty town known as the Jungle, demolished last October as several thousand refugees were relocated across France.
Security forces stepped in and used tear gas in a bid to separate migrants caught up in the skirmishes, who were mainly from Eritrea and Ethiopia. Some 20 minors were sent to reception centers, authorities said.
Around 400 migrants are estimated to still be living in the area, according to humanitarian groups.